Friction draft-rigging.



Patented 'pxz 2G, 1915.

8. SEEETBTEHEET l.,y

V J. F. OCONNOR.

FRICTON DRAFT RIGGiNG. APPLICATION FILED DEC. 2G. 19H. RENEWED AUG. l2' i914.' 1913,35;

'Jenn r. CConnon, or CHICAGO, ILLINOIS, Assrenon CHICAGO, immersi v'ro WILIIAM MINER, or

rarc'rion' nnarnnreerlve.

Toall 107mm it may concern Be it known that l, JOHN F. OCONNCR, a citizen of the United States, residing at Chicago, in thecounty of Cook-and State of illinois, have inventedacertain new and luseful lmproveine'nt 1n Friction Draftdig ging, of which .the following 1s a full, clear,

great buiiing and pulling resistance.

To' this'end my invention consists in a draw bar connected with a draft yoke, the latter having wlthin it tandem arranged friction cushioning devices, or a frictioncushioning device arranged tandem with a spring cushioning device mounted 1n connection with the draft members of a railway car.

1t further consistsin the novel devices and the novel co'mbinatioiiy of parts and devices herein shown and'described, and more particularly pointed out in the-claims. l

In the accompanyin drawings which form a part of this specification Figure 1 is a side elevation of a draft rigging with my friction element in vertical longitudinal seci'on. yFig. 2 is a plan lview of a draft rigging with my friction element' shown in half i plan, and half partly in horizontal section.

Fig. 3 is an enlarged cross section on line 3, 3 ,of F ig. 2. F ig.4 is longitudinal section-of my friction cushioning element showing the position of parts when the device l1s compressed solid. Fig. 5 is a front. end per- Y spective view of the spring cup or cap. Fig.

6 is an end perspective View' of one of the friction blocks or wedges. Fig. 7 is an end perspective '.view of one of the friction blocks showing inside of same. Fi 8 isa sidev View of the frictionblocks or wedges assembled. Fig. 9 illustrates a modification in side eleafation partly in longitudinal section.

Referring to the drawings 9, 9 represents the center sills or draft members of thecar frame to which the stop members 10 ar e V secured, preferably by the rivets'll'. 12,.,th`eu.

Specification of Letters Patent.

scribe'one of them.

Patented apr. eo, i915.

- Application filed December 26. 1911, Serial No.` 667,593. Renewed August 12, 1914. Serial No. 856,490.

tion shell arranged between the followers 23 Each of the friction shells and contained parts are identical, and I will therefore de- The friction shell is cylindrical in shapeor circular-in cross sec-l tion, open at its forward end. and closed at its rear end by the preferably integral plate 2.6.

27 and 28 are two sets ofopl'iositely arranged annular segmental wedging'friction shoes, each set preferably comprising three segmental wedging shoes 29, all preferably identical in shape or made from the same pattermand each provided with an internal. preferably. integral teat or pin 30, which fits within one of the adjacent annularly arranged openings or perforations 31 in the spring cup` or cap 32. The said spring cup is'cylindrical in form, and is provided at its rear end with an outwardly turned flange 33 against the forward face of which 34 the.

rear ends 35 of the rear set of annular segmental friction shoes 28 abut. The vfriction shoes are in annular arrangement around the spring cup.

The numeral 36 designates a spring, the rear end of which is seated against the rear inner end of the friction shell, and the for ward end of which is seated against the inner face of the forward preferably integral end plate 37. The said spring is capable of being compressed Within the spring cup on full compression of the cushioning devices. The spring Cup is provided at. its forward yend with an interiorly extended preferably integral hollowboss or lug 38 to receive'. within-it the nut 39 suitablythreaded' on the .fc ward end of the connecting rod 40, whichro passes through the perforation 41 at the 'rear end of saidjboss and through the lrear lplate 26 of the-friction shell, and s pro'- r itl" the head 42 counfersunk thereln.

all(

The longitudinal cylindrie wall i3 of the eeption of the spring 3G ciicuinferentially between thein and its seating around the boss 38.

.The front ends 45 of the front set of aniiularliv arranged friction shoes 27 .are preferably more forwardl)7 extended than the front end of the spring cup 32, and the follower adjacent bears inst the front ends of said friction shoes. ltacli of the annular segmental friction shoes 29 has two inclined or wedg'ing'faces 4G, -l-'i'f'. 'i heannular segmental friction shoes of the front set invt'erfit or internest eircuniferentiallv with the Aannulail segmental friction shoes of the rear set. I

The stop addition to the front stop shoulders i7 and rear stop shoulders 48 and intermediate stop shoulders 49 and V50, front limiting stop shoulders 51 and 52, andi'ear liniiti'iigstop shoulders 53 and 54Jfo`r the followers to abut against. 'The tie plate 55 is secured to the draft members 9 by bolts 5G. The boss 38 in the spring cup and the connecting` rod 40 serve to hold the parts in assembled. position, and also provide means for mailitaining the spring under an initial compression, and also for `automatieall)7 taking up the weai' of the friction shoes.

The front and rear friction elements `57` land 58 respectively, each 'consisting of a friction shell and contained friction parts 'hereinbefore described, are placed within the draft yoke 13, the front friction element being between the followers 20 and and within the forward lateral Opening 59 of the vprovided with means connectingv thein to the spring cup.

said yoke, and the rear friction element 5S lieiiig between `the followers 23 and 211 and within the .rear lateral opening 60 of the draft yoke, tlie'saidopenings being in -taiidein arrangement. l

In the modification one of the lateral openmembers 10 prei'ieiably li are in ings .of the yoke, preferably the rear one, is provided with a 'spring' cushioning ineehanisiii (il. and the other lateral oprnng is `provided with in): friction elements.

I claim:-

1. In a iailw ay draft rigging the combina tion of a draw liar, stop nicniliers, .followers and )folien-of a friction shell, friction shoes, a spring cup and spring within the shell, the said spring being' seated at -one end withiii the spring cup and at the otherl end against the friction shell, and capable of being compressed within the spring' cup yn full compression of thecushioning tleriees.

2. In arailway draft rigging the eoinl iinfi tion with a draw liar, stop nieinliers, followers and yolie, of a friction shell, friction shoes, spring cup and spring within the shell, the said friction shoes being' provided ontheir inner faces with a pin or trat, and the spring' cup being provided willi annu` lari) arranged pei'foiatioii.-= for the iecep tion of said pins.

8. In a draft gear, a shell, two sets of oppositelv arranged friction slices, a spring cup and spring within the shell, the said friction shoes i being annularly arranged around the said spring cup.

4. Ina draft gear, a Shell, a spring cup,

springs and -two sets of oppositely arranged friction shoes within the shell, the said shoes being arranged around said spring cup, the

-said spring cup beiiig'pro\'ided at one end with an outwardly turned fiange adapted to engage one set of friction shoes.

A 5. In a` draft gear, 'a shell, friction shoes, a spring' cup and a spring within the shell, thefriction shoes being oppositely arranged about the spring cup, the said shoes` being JOHN F. OCONNOR. Witnesses J ons' A. MAR'HN nos,

ELENoi-i L. Nasii. 

